Merge branch 'master' into gh/bowangbj/3/head

Author: brianjo

.circleci/config.yml

@@ -122,7 +122,7 @@ pytorch_tutorial_build_defaults: &pytorch_tutorial_build_defaults
       command: |
         set -e
 
-        export pyTorchDockerImageTag=9de29bef4a5dc0dd1dd19428d83e5a66a44a1ed2
+        export pyTorchDockerImageTag=27360e99acec34d1c78f70ba15ac2c28ed96c182
         echo "PyTorchDockerImageTag: "${pyTorchDockerImageTag}
 
         cat >/home/circleci/project/ci_build_script.sh \<<EOL